<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8">
	<title>简单CSS过渡动画</title>
	<link rel="stylesheet" type="text/css" href="./style.css">
</head>
<body>
<script type="text/javascript" src="index.js"></script>
<div class="container">
	<div id="text" class="text1">前端学院</div>
	<div id="line" class="line1"></div>
	<button id="but" onclick="changeStyle()" class="but1">切换样式</button>
</div>
</body>
</html>